The author's | drifted away
Source| Jiguo Editorial Department
In the past two days, there has been a "big news" in the new energy vehicle circle.
Legend has it that an Indian company claimed to have developed a revolutionary new energy battery - aluminum-ion battery, which claims to have a range of 1200 kilometers, 12 minutes full, and the cost is half lower. It is simply a punch to a lot of new energy, stepping on traditional fuel vehicles, and the theoretical performance is strong to the top.
The most exaggerated thing is that this is not a simple PPT, but a mass production technology planned for large-scale commercial use in 2022, which is indeed a bit of a momentum to revolutionize the existing new energy life.
As soon as this news came out, the stocks of several major domestic new energy battery giants also fell in response, and the movement was quite large, and the impact was not small.
However, JiguoJun fixed his eyes on it: the Indian company, the secret research and development 5 years ago, the first large-scale commercial use, these words add up, is things becoming a little "magical"?
This so-called aluminum-ion battery technology, in the end, is it so cattle as claimed? Can it really revolutionize the lives of the major lithium battery giants in China? Don't worry, let's go deeper.
The R&D team claimed that in five years of secret research and development, the energy density of the new aluminum-ion battery (Ea2I) developed reached 1500Wh/L, equivalent to 650Wh/kg, which is a bit exaggerated data.
At present, the two mainstream lithium batteries, lithium iron phosphate battery energy density is about 150Wh / kg, ternary lithium battery can rarely exceed 200Wh / kg, that is to say, the energy density of this new type of aluminum-ion battery (Ea2I) has reached more than three times that of the current mainstream battery.
Saturnose claims that a set of aluminum-ion battery packs weighing 565kg and 150kwh can bring more than 1200km of cruising range to electric vehicles.
This exaggerated mileage not only revolutionized the life of new energy vehicles, but also conveniently pressed the traditional fuel vehicle on the beach.
But this is not the most cattle, Saturnose company claims that such a 150kwh battery pack only takes 12 minutes to fill!
What is this concept? Real charge 10 minutes, range thousands of miles! It means that the two major pain points that plagued the new energy tram before were directly solved!
In addition, Saturnose claims that the cathode of this aluminum-ion battery (Ea2I) uses a high-energy, disordered rock salt structure, and uses aluminum and niobium and solid electrolytes, does not use nickel and cobalt, and does not have dendrites of lithium ions and thermal runaway fires, which is safer.
Support 20,000 cycles of charge and discharge (current lithium batteries usually only have 3,000 charging life), and the service life of new energy vehicles using aluminum-ion batteries will reach at least 15 years. At the same time, the cost of aluminum-ion batteries will be reduced by 50% compared with traditional lithium-ion batteries.
12 minutes full, 1200 kilometers of life, safer, longer life, the price is still cheaper than lithium batteries half, no wonder this technology debuted in the major lithium battery giants the stock price fell in response, aluminum batteries are so powerful, but also engaged in lithium batteries?
Once this technology is landed and mass production and commercialization begins, it will greatly enhance the market competitiveness of new energy trams, and will also change the travel choices of many people, so that the entire new energy vehicle field will meet a new round of reshuffle.
Although the aluminum-ion battery is blessed with various black technologies, the parameters look very beautiful, as if the future is bright, but this matter is not reliable, or to see if it can be as smooth as they advertise mass production landing.
Jiguojun checked the information of this Asian battery research and development company Saturnose, which is very interesting.
The project was initially supported by Saudi Arabia's Dana Ventures Fund, which received two rounds of seed funding, the main members of the R&D team are from India, and the company's registered address is in Delaware, USA.
People stupid money more dog big household + brain hole big open A three brothers made out of the American company? Boy! What about putting this stack of BUFF away?
After digging deeply, It was found that Saturnose claimed that the key data of aluminum batteries, such as mileage and charging efficiency, may also have a lot of moisture.
It is not that Ji Guojun is biased, but it is that There are too many "previous crimes" of Brother A.S. Moreover, laboratory data and mass production data may also be quite different. There are many "good things" in the laboratory, but whether it can really be commercially used smoothly still has a big question mark. "Concept Lin Zhiling, mass production of Luo Yufeng" everyone has long been strange.
Take the charging efficiency claimed by Saturnose, 12 minutes to fill a 150kwh battery, converted to the power of the charging pile to reach 750kw.
That is to say, ultra-high voltage charging piles and super currents are required to achieve such charging efficiency, so how to solve the heat and safety problems, Saturnose did not give a specific solution.
In addition, Saturnose claims that the battery cathode uses a high-energy, disordered rock salt structure, and uses aluminum and niobium and solid electrolytes, without the use of nickel and cobalt, which can eliminate dendrites and thermal runaway fires of lithium-ion batteries.
But in fact, the dendrite problem of aluminum is not less than lithium, or even more serious, especially in the rapid charging and discharging scenario is more likely to appear dendrite phenomenon, the occurrence of battery short circuit, causing combustion and explosion, coupled with the higher energy density of aluminum batteries, once the explosion, the consequences will be more serious.
At present, there is no query about the relevant patent technology declared by Saturnose on this problem, nor is there certification and endorsement by the authoritative body in the industry, and only relying on the few words on the official website page, it is really unreliable.
In fact, the aluminum-ion battery is not a new concept that came out of nowhere, but it has become a menstrual sticker that has to be hyped up every once in a while in the field of new energy.
Not only aluminum ions, the industry has been trying to find better performance battery materials, related research has not stopped, such as the domestic battery giant Ningde era power sodium ion battery and gree official announcement of titanium batteries some time ago.
However, the reason why lithium-ion batteries currently occupy the absolute mainstream in the field of new energy vehicles is because at present, there is no other comprehensive cost consideration that can replace lithium-ion new battery materials on a large scale.
After all, the current lithium-ion battery as the absolute mainstream has formed a complete upstream and downstream industrial chain, complete technology, and policy subsidy support, the cost of lithium metal only accounts for less than 5% of the battery cost. Therefore, the advantages of aluminum-ion batteries in the price of raw materials are not as great as imagined.
Jiguojun is also looking forward to a revolutionary breakthrough in battery technology and truly changing the way people travel.
But compared with the battery giant that invests billions of dollars in research and development every year, the unknown Saturnose company has neither patent reserves nor authoritative endorsements.
Turning out to claim to directly double the existing endurance level, punching Tesla and stepping on BYD, is not so much a technological revolution as it is more like cheating money speculation, which is somewhat less confident.
With the increasing demand for batteries such as new energy trams, the price of lithium battery raw materials is also soaring. Although China's lithium resources are rich in reserves, ranking sixth in the world, the pace of external expansion of several major domestic lithium battery giants has never stopped.
The reserve competition for lithium battery raw materials has entered a white-hot situation, but CATL has even set up a subsidiary to be responsible for the acquisition of lithium ore and other related businesses.
It is believed that lithium batteries will continue to be the mainstream of new energy vehicles for a long time in the future. Do you think Saturnose's aluminum-ion batteries are reliable?